Means for cleaning the rollers of spinning frames



Jufly 31, 1951 DELEPIERRE ETAL 2,562,451v

MEANS FOR CLEANING THE ROLLERS OF SPINNING FRAMES Filed Oct. 29, 1946FDelefi/erpe I C. Clws u 25 Patented July 31, v.1951

MEANS FOR CLEANING THE ROLLERS OF SPINNING FRAMES Florimond Delepierreand Jules Charles Ghesquiers, Haubourdin, France, assig-nors to Societefen Nom Collectif des Brevets Florimond Delepierre, Haub'ou'rdin, FranceApplication' dctober 29, 1946,- Serial No. 706,422

, In. France-November 20, 1945 In continuous spinning frames, theroving'is drawn by passing it through-a, drawing head comprising aseries of fluted rollers, usually three 2 Claims; (Cl.'1 9---139) innumber, having journals rotatably mounted in bearings provided inrollerstands, the said rollers co-operating with steel top pressure rollershaving journals which'are rotatably guided in weighting saddles pivotedon the roller stands, the top pressure rollers co-operatingwith the lastfluted roller to deliver the roving to the actual spinning devices beingcovered with leather.

v During the drawing operation, some of the fibres become detached fromthe roving, and drop down from the spinning frame, while other fibresleave the roving and remain attached to the drawing rollers oraccumulate; behind the delivery rollers until they are pulled out by thethread in the form of a lump, resulting in a, defect in the yarn orbreakage of the yarn while' thelatter is passing through the travellerof the ring.

Various devices are employed for cleaning the delivery rollers, theusual means employed for the purpose being in the form of wooden clearerrollers covered with velvet or rough cloth, which bear against thedelivery rollers and rotate in opposite directions thereto. The clearerrollers of the top, leather-covered pressure rollers are applied theretoby their own weight, being provided with journals which are rotatableand slidable in guide forks fixed to the weighting saddles.

The coverings of the clearer rollers which pick up the fibres adheringto the top pressure rollers must themselves be regularly cleaned, andthe present invention has for its object to provide an improvedstripping mechanism for this purpose.

The accompanying drawings show diagrammatically, by way of example butnot of limitation, one form of construction of the invention.

Figure l is a perspective view of the apparatus according to theinvention, placed over the rollers of a continuous spinning frame.

Figure 2 is a profile view of the same apparatus.

Figure 3 is an end view of the larger base of one of the cones.

Figure 4 is a plan view of the apparatus.

Referring to the drawings, the drawing head illustrated comprises threefluted bottom rollers 21, 28, 29 which are rotatably mounted in bearingsprovided in roller stands 3! in the customary manner, the said rollersco-operating with top rollers I, 25, 30, respectively, the rollers 30being covered with leather. The rollers I, 25, 30 are provided withjournals which are rotatably guided in saddles 32 pivoted on the rollerstands 3|,in the well-known manner. w

Clearer rollers 2 are provided for the rollers 30, the said clearerrollers being covered with velvet or cloth and serving for cleaning therollers 30. The rollers 2 have journals 4i] which are rotatable andslidable in guide forksAI fixed to the saddles 32, so as to enable therollers 2 to rest upon the rollers 30.

The drawings show a prismatic channel 3 forming a frame on which arefixed two cheekforming plates 4 and 5, provided with notchesli and 1,respectively, into which is placed the spindle 8 of a spool 9, uponwhich is arranged an endless cleaning card strip I0,the wires of whichare on the outside. 7

Several pairs of brackets II and I2,..the flattened heads of which eachcomprise a hole for the passage of the spindle I3 of a truncated cone Il, are fixed to the frame. These brackets II and I 2 can slide in amortise reserved in guard pieces I5 fixed to the channel member 3, and aset screw I 6 (Figure 2) locks the said brackets in position.

These brackets are so fixed that the axes of rotation of the cones aresubstantially parallel.

If, as indicated in Fig. 1, the apparatus is so placed that the channelmember covers the rollers I and so that the cones rest obliquely on thecloth-covered rollers 2, the rotation of the latter turns the cones I4about their respective axes and causes them to advance in the directionopposite to the 'apioes of the cones, thus carrying along with them theframe 3, which slides above the saddles 32. The cleaning card strip I0,which is always in contact with the cloth-covered rollers, brushes thelatter and removes the textile fibres adhering thereto.

In spinning machines, the cloth-covered rollers are not all of strictlythe same diameter, and are not all in the same alignment. In order thatthe cones may not be stopped in their advance, the larger base of eachcone comprises an eccentrically disposed end portion I I of reduceddiameter, as represented on a larger scale in Figure 3. This eccentricportion I1 is tangential at I8 to the base of the cone. In order thatthe cones may remain in contact with the rollers, their axes of rotationare free to oscillate, and for this purpose the holes in the flattenedheads of the brackets II and I2 are elongated, as represented at I9 inFigure 3.

When the rollers 2 are rotated by frictional contact with the rollers30, the cones I4 will be turned by frictional contact with the rollers 2and will advance slowly in the direction opposite to the apices of thecones. The speed of advance of the cones increases with the angle formedby the axes thereof with the longitudinal axes of the rollers 2 V g I Onany cone, during "its advance, encountering a roller 2 of largerdiameter, the eccentric portion I! of the cone will climb smoothly uponthe end of the said roller.

Thus the apparatus advances slowly along the spinning frame and removesthe fibres that adhere to the velvet-covered or clothcovered rollers,these fibres remaining entangled withthe wires of the strip of cleaningcard. When this cleaning card is full of fibres, it can easilybereplaced by a clean strip.

As represented in Figures1 and 2, the cheeks 4 and 5 may advantageouslybe extended, and may comprise notches 23 and 23! enabling the apparatusto be hung on to any cross-member of the spinning frame when not beingused.

As indicated in Figure 2 the apparatus may be supplemented by a brush24, which sweeps off the fibres and dust deposited on a roller 25.

We claim:

1. A travelling cleaning device for continuous spinning'frames and liketextile machines having a drawing head embodying a plurality of parallelrows of r'ollers,comprising in combination, a frame freely slidablealong one of said rows of rollers, a clearing element carried by saidframe and in contact with the rollers of an adjacent parallel row ofrollers, brackets on said frame and traversing means for the frame,comprising a plurality of cones rotatably mounted in said brackets andin contact with the rollers of said adjacent row with their axes at anangle to a plane containing the axes, of said rollers, so as to rotatewith'and travel along the rollers of said adjacent row in the directionopposite to the 4 apices of the cones, each cone having an eccentric endportion of reduced diameter tangential to the base of the cone.

2. A travelling cleaning device for continuous spinning frames and liketextiles machines having a drawing head embodying a plurality ofparallel rows of rollers, comprising in combination, a frame freelyslidable along one of said rows of rollers, a pair of upright cheekssecured to the frame, a spool freely rotatable between said cheeks, aclearing element comprising an endless strip of card clothing extendingaround said spool with its wires in contact with the rollers of anadjacent parallel row of rollers, brackets on said frame and traversingmeans for the frame, comprising a plurality of cones rotatably mountedin said brackets and in contact with the rollers of said adjacent rowwith their axes at an angle to aplane containing the axes of saidrollers, so as to rotate with and travel along the rollers of saidadjacent row.

FLORIMOND DELEPIERRE. JULES CHARLES GHESQUIERS.

REFERENCES CITED The following references are of record in thefile ofthis patent:

UNITED STATES PATENTS Number Name Date 882,931 Deeley et a1. Mar. 24,1908 1,352,852 Van Brocklen et a1. Sept. 14, 1920 1,462,774 Sutton etal. July 24, 1923 1,911,930 Schultze May 30, 1933 FOREIGN PATENTS NumberCountry Date 6,954 Great Britain of 1906 826,075 France Mar. 22, 1938

